Back cover for lock



FIG. 1 is a front perspective view of a back cover for lock;

FIG. 2 is a back perspective view of FIG. 1 ;

FIG. 3 is a front elevational view of FIG. 1 ;

FIG. 4 is a back elevational view of FIG. 1 ;

FIG. 5 is a left side elevational view of FIG. 1 ;

FIG. 6 is a right side elevational view of FIG. 1 ;

FIG. 7 is a bottom view of FIG. 1 ; and,

FIG. 8 is a top view of FIG. 1 .

CLAIM I claim the ornamental design for a back cover for lock, as shownand described.